1 files changed, 33 insertions, 0 deletions
diff --git a/src/text.js b/src/text.js
new file mode 100644
index 0000000..d267817
--- /dev/null
+++ b/src/text.js
@@ -0,0 +1,33 @@
+class _my_TextEncoder {
+    encode(text) {
+        text = unescape(encodeURIComponent(text));
+
+        var bytes = new Array( text.length );
+
+        for (var b = 0; b < text.length; b++) {
+            bytes[b] = text.charCodeAt(b);
+        }
+
+        return new Uint8Array(bytes);
+    }
+}
+
+class _my_TextDecoder {
+    decode(bytes) {
+        return decodeURIComponent( escape( String.fromCharCode.apply(String, bytes) ) );
+    }
+}
+
+var Zmodem = module.exports;
+
+/**
+ * A limited-use compatibility shim for TextEncoder and TextDecoder.
+ * Useful because both Edge and node.js still lack support for these
+ * as of October 2017.
+ *
+ * @exports Text
+ */
+Zmodem.Text = {
+    Encoder: (typeof TextEncoder !== "undefined") ? TextEncoder : _my_TextEncoder,
+    Decoder: (typeof TextDecoder !== "undefined") ? TextDecoder : _my_TextDecoder,
+};